Hi all\n\nI've just popped out my 2 x 128Mb and put in 2 x 256Mb DIMMs. The system has\nbooted up fine and I'm using it right now. However, I remember a few posts\nmany moons ago about how there is a performance impact as the extra memory\nisn't cached properly or something. I think you had to alter the write-back\nor write-thru caching or do a registry hack or so. I'm dual booting Win98SE\nand Win2K. Win2K is OK I think but it's Win98SE I have to change.\n\nCan somebody let me know what I need to do as I don't want the 512Mb to slow\nme down any.\n\nThanks for any replies.